package com.inray.nbs.utils;

import java.util.ArrayList;
import java.util.List;

public class MapUtil {
	private double pi = 3.14159265358979324;  
	private double a = 6378245.0;  
	private double ee = 0.00669342162296594323;  
	private  double x_pi = 3.14159265358979324 * 3000.0 / 180.0;  

	public  double  transformLat(double x, double y){  
		double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));  
		ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;  
		ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;  
		ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;  
		return ret;  
	}  

	public double transformLon(double x, double y){  
		double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));  
		ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;  
		ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;  
		ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0;  
		return ret;  
	}
	public Boolean outOfChina(double lat, double lon)  
	{  
		if (lon < 72.004 || lon > 137.8347)  
			return true;  
		if (lat < 0.8293 || lat > 55.8271)  
			return true;  
		return false;  
	} 
	public List<Double> transform2Mars_each(List<Double> list){  
		double wgLat=list.get(0);
		double wgLon=list.get(1);
		double dLat = transformLat(wgLon - 105.0, wgLat - 35.0);  
		double dLon = transformLon(wgLon - 105.0, wgLat - 35.0);  
		double radLat = wgLat / 180.0 * pi;  
		double magic = Math.sin(radLat);  
		magic = 1 - ee * magic * magic;  
		double sqrtMagic = Math.sqrt(magic);  
		dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);  
		dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);  
		double mgLat = wgLat + dLat;  
		double mgLon = wgLon + dLon;  
		List<Double> l=new ArrayList<Double>();
		l.add(mgLat);
		l.add(mgLon);
		return l;
	} 
	public List<Double> transform2Mars_each(double wgLat,double wgLon){  
		double dLat = transformLat(wgLon - 105.0, wgLat - 35.0);  
		double dLon = transformLon(wgLon - 105.0, wgLat - 35.0);  
		double radLat = wgLat / 180.0 * pi;  
		double magic = Math.sin(radLat);  
		magic = 1 - ee * magic * magic;  
		double sqrtMagic = Math.sqrt(magic);  
		dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);  
		dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);  
		double mgLat = wgLat + dLat;  
		double mgLon = wgLon + dLon; 
		List<Double> l=new ArrayList<Double>();
		l.add(mgLat);
		l.add(mgLon);
		return l;
	} 
	public List<Double> transform2baidu_each(double wgLat,double wgLon){  
		double dLat = transformLat(wgLon - 105.0, wgLat - 35.0);  
		double dLon = transformLon(wgLon - 105.0, wgLat - 35.0);  
		double radLat = wgLat / 180.0 * pi;  
		double magic = Math.sin(radLat);  
		magic = 1 - ee * magic * magic;  
		double sqrtMagic = Math.sqrt(magic);  
		dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);  
		dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);  
		double mgLat = wgLat + dLat;  
		double mgLon = wgLon + dLon; 
		List<Double> l=bd_encrypt(mgLat,mgLon);
//		l.add(mgLat);
//		l.add(mgLon);
		return l;
	} 
	public List<List<Double>> transform2Mars(List<List<Double>> list){  
		List<List<Double>> list_2=new ArrayList<List<Double>>();
		for(List<Double> l:list){
			list_2.add(transform2Mars_each(l));
		}
		
		return list_2;
	} 
	/** 
     * �������ת��Ϊ�ٶ���� 
     * @param gg_lat 
     * @param gg_lon 
     */  
   public  List<Double> bd_encrypt(double gg_lat, double gg_lon){  
        double x = gg_lon, y = gg_lat;  
        double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);  
        double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);  
        double bd_lon = z * Math.cos(theta) + 0.0065;  
        double bd_lat = z * Math.sin(theta) + 0.006;  
        List<Double> l=new ArrayList<Double>();
		l.add(bd_lat);
		l.add(bd_lon);
		return l;
  
    }  

}
